#!/bin/bash
#case 的基本语法结构的例子
#     ;; 是命令的结束符
#     var 是一个定义的变量,其中注意×是所有情况没法匹配时候的默认执行语句
#
#       case  var in
#       reseon01)
#            command;;
#
#       reason02)
#            command;;
#            ....
#        *)
#            command;;
#    esac             
#
echo "please input char"
read reson 
case $reson in
    a)
        
    echo "you are input a ";;
    
    b)
        echo "you are input b";;
    
    *)
        echo "you are input other word";;
esac

